Text Arc provides a whole new way of looking at texts. According to their site it "is a tool to aid in the discovery of patterns and concepts in arbitrary texts by leveraging a power and underutilized resource -- human visual processing." When you choose a text, it writes out the whole story in a spiral, then shows words from the text in the center of the spiral. It then forms all kinds of connections between words based on how often it is used and where in the text it is. It's pretty keen.
Things like this make me wish I was back in school. I could have so much fun with something like this.